On Thu, Apr 8, 2021 at 3:38 PM Justin Pryzby <pry...@telsasoft.com> wrote: > It looks like this should not remove the word "data" ?
Oh, yes, right. > The compression technique used for either in-line or out-of-line compressed > -data is a fairly simple and very fast member > -of the LZ family of compression techniques. See > -<filename>src/common/pg_lzcompress.c</filename> for the details. > +can be selected using the <literal>COMPRESSION</literal> option on a > per-column > +basis when creating a table. The default for columns with no explicit setting > +is taken from the value of <xref linkend="guc-default-toast-compression" />. > > I thought this patch would need to update parts about borrowing 2 spare bits, > but maybe that's the wrong header..before. We're not borrowing any more bits from the places where we were borrowing 2 bits before. We are borrowing 2 bits from places that don't seem to be discussed in detail here, where no bits were borrowed before. -- Robert Haas EDB: http://www.enterprisedb.com
